Firefox saves backups of your bookmarks automatically.
You can also just open Bookmark Manager and export a copy of your bookmarks and save that file in a safe place as an added backup.
If you take the time to learn the product's features you wouldn't have a problem.
Firefox is the best browser on the Net. I've tried Opera also but wasn't impressed. I like all the extensions for Firefox so you can customize your browser with the exact features you like.
Plus Firefox has two nifty extension for faster porn surfing. Save Image In Folder lets you just double click any image and it automatically saves it in your pics folder or any other folder you preset. Thumbs automatically creates image galleries from a page of text links like on The Hun so you can quickly see the first image on all the gallery links.
http://www.mozilla.com/firefox/
Also a great free alternative to Microsoft Office is
http://www.OpenOffice.org.
Version 2.03 just came out. It rocks!